Car-dumping apparatus.



G. H. MUELLER. CAR DUM PING APPARATUS.

APPLICATION FILED JULY 3|. 19H.

Patented; Nov. 6, 1917.

4 SHEETS-SHEET I.

1R WWI coo as G. H. MUELLER.

CAR DUMPING APPARATUS.

APPLICATION FILED JULY 31.1911.

1 45,94? Patented Nov. 6, 1917.

4 SHEETS-SHEET 2.

G. H. MUELLER.

I CAR DUMPING APPARATUS.

APPLHPATION FILED JULY 31.1911.

Patented Nov. 6, 1917.

4 SHE ETS-SHEET 3.

G. H. MUELLER.

CAR DUMPING AEPARATUS. APPLICATION FILED lULY 31; 1911.

1,245,947. Patented Nov. 6, 1917.

4 SHEETSSHEET 4.

61/91 rue-09% 514132 14 "0 z i W Tezw/ marine srnriis ATN orient.

scone-n nnn'nrimnnnnn, or CGLUMBUS, OHIO, nssr enor. TO THE :rnrrnnr tranc- FACTUBING COMPANY, A

can-numerator,

Specification of Letters Patent.

CQRPORATION OF 01-110.

APPARATUS.

Patented Nov, e, ieia,

Application filed .T 11137 31, 1911. Serial No. 641,524.

To all whom it may concern:

Be it known that L'G'roncn H. MUELLER, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain newand useful improvements in Car-Dumping Apparatus, of which the following is a specification refefe'nce being had therein to the accompanying drawing.

This invention relates to car dumping apparatus of the type in which the car is tilted to an angle such that material within the I car will slide out through an opening 1n the end. More specifically my invention relates to apparatus of the class in which two superposed tracks are provided and in which a car is transferred from one:track to the other by means of a shifting track section and dumped While on the shifting track section. The objects of my invention are to provide a car dumping apparatus of this class having improved means for controlling the movement of the car while it is approaching the shifting track section; improved means for controlling the car into and out of dumping position and improved means for actuating and controlling the shifting track section. Numerous other objects will be apparent from the following specification.

1n the accompanying drawings, .which form a part of this specification, I have shown the form of mechanism which I now preferable. it will be understood, however, that various modifications and changes may be made Without departing it of my invention.

.- awings,

is a side elevation showing a position; I

' e elevation showing a car 3 in view of the mechanism U16 positions shown in 2 reptracks two superposed any suitable ind cated in t is lightiy inclined nstance,

shafts mounted. parallel to and at clined in the other direction and is provided at its upper end With an upturned part 3 for a purpose to be described. it represents a shiftable track section Which is mounted at its forward end upon a horizontal transverse shaft 5 '';having suitably supported bearings 6 and 7 at its ends. The section l is arranged When in its upper position to aline With the track 1 and when in its lower position to aline with the upturned end 3 of the track 2. The section 4: has a part 8 adjacent its pivoted end which is bent sharply downward with respect to the main part of the section. The purpose of this will be hereinafter set forth.

I By preference the rails of the track 1 and of the section 4 are rectangular in cross section and are narrower than the treads of ordinary track rails,

In order to control the movement of cars along the upper track 1 two pairs of horns 9, 9 and l0, 10 are provided. Each horn held at one extreme position by means of coil springs l3, 13. These springs serve as shock absorbers when the horn is engaged by a car wheel.

14- and 15 are tWo horizontal rotatable sides of the track 1. At one end there is provided a transverse horizontal rotatable shaft 16 which is connected with the shafts l4 and 15 by means of pairs of bevel gears 17 and 18. ranged that the shafts 4i and 15 will be rotated in the opposite directions. 19 is an arm on the shaft 16. 20 is a hand lever pivotally mounted at a point adjacent the pivotal support for the is a rod or link connecting the hand lever By means of this ill'lian operator by moving the lever 20 can Qil with the arm 19.

sneous rotation of the two shafts i land 15.

and 23 are upstand" es. actively to the shafts I cause the sinr l is provided with a depending arm. 2

opposite The gears 17 and 18 are so ar- "Mil lever 22 or 23 there is provided a link 25. 26 and 27 are other upstanding levers mounted respectively on the shafts 1t and 15 at points opposite the horns 10, 10. Each of the horns 10 is provided with a depending arm 28 and between each arm 28 and the corresponding lever 26 or 27 on the shaft at the opposite side of the track there is provided a link 29.

By means of the construction which T have described an operator by moving the lever and tensioning the link 21 may rotate the shaft 16 and by means of it the two shafts 14 and 15. By means of the two links 29, 29 the horns 10, 10 are moved from outstanding positions into positions for engagement with the wheels of a car moving along the track 1. Simultaneously by means of the links 25, the horns 9, 9 are moved from positions in alinement with the wheels of a car to outstanding positions out of alinement with the wheels of a car. Preferably a sheave 30 is mounted on a shaft 16 and over this sheave there passes a rope 31 to which is attached a counterweight 32. This counterweight will serve to automatically move the parts in the opposite directions from those which have been described and to return them to their initial pcsitions.

33 is a vertically reciprocable gallows frame forcontrolling the movement of the shifting or oscillatory track section 4:. The frame 33 comprises two side upright members 34:, 34 and top and bottom horizontal cross members 35 and 36. Suitable guides 37, 37 and 38, 38 are provided for the frame. These guides engage with outstanding vertical flanges 39, 39 on the uprights 3a, 34. By means of links 4:0, 4:0 the ends of the rails of the track section 4: are connected with the cross member 36 of the gallows frame. on a suitable framework is a transverse rotatable shaft 41 upon which two sheaves 42, 42 are mounted. Each of the sheaves 452 preferably has two rope receiving grooves. Secured to each sheave and arranged to engage with one of the grooves is a rope 43 which extends downward and is connected with the top member of the gallows frame, preferably by means of a link 44. Other ropes 45 are secured to the guide sheaves 42 for engagement with the other grooves thereof. These ropes extend downward at the opposite sides of the sheaves and carry at their lower ends the adjustable counterweights 46. It will be observed that the construction is such that the counterweights tend at all times to lift the 0s illatory track section. In order that the lifting force of the counterweight may be properly applied, the sheaves 42, are by preference mounted eccentrically on the shaft 41. The sheaves are so arranged and connected that when Mounted above the gallows frameas tamer? the section t is depressed, as shown in Fig. 21,

of the counterweights is applied at a rela tively small moment arm and the weight of the track section applied at a relatively great moment arm. By properly adjusting the size of the counterweights they may be made to approximately balance the track section when it is in upper position. However, when the track section is in lower position the counterweights on account of the changed moment arms will apply a consid erable lifting force.

t7, 4:? are two longitudinally slidabl latches arranged to engage with lugs 48 at the ends of the rails of the track section 4. and to support the track section in alinement with the track 1. At points adjacent the latches 48, 48 are suitable stops 4:9, 49 for engaging the lugs 48 to limit the upward movement of the track section. 50 and 51 are two transverse rock-shafts mounted in suitable bearings connected to the rails of the track 1. Secured to the ends of the rear rock-shaft 50 are upward and forward inclined trip levers 52, having downward extending arms 53. Secured to the ends of the forward rock-shaft 51 are trip levers 54, having downward extending arms 55. 56, 56 represent two links, which areconnected at their forward ends to the latches L7, 47, at their rear ends to the downward extending arms 53 of the trip levers 52, and at points intermediate their ends to the downwardegrtending arms 55 of the trip levers 54. lithe trip levers 5a are .be'ntsuccessively backward and downward and preferably at their extreme ends counterweights At the forward ends of the shafts l i and 15, at points opposite the gallows frame 33. are inward extending arms 58, 58 which carry rollers 59, 59 adapted, to engage with the vertical flanges 39, 39, these flanges being beveled at their lower ends. The arms 58, 58 and the rollers 59, 59 serve to lock the shafts 14- and 15 in positions in the horns 10, 10 mperative when the gallows frame 33 and the track section 4;"are depressed, or to move the shafts to this position when the gallows frame moves downward, in case they one end to the frame of the track section.

The other end carries suitable lock nuts 65. A coil spring '66 surrounds the rod 64 between its point of pivotal connection and the yoke 63. The spring tends to normally hold the horns in the position indicated by dotted lines in Fig. 1, and by full lines in Fig. 2.

At the other end of the rock-shaft 60 there is a brake Wheel 67 which is engaged by a brake band 68. One end of the brake band is secured to the frame of the track section and the other end is secured to one end of a lever 69 which is pivotally mounted between its ends on the track section frame at 70. Slidably mounted upon the lever 69 is a weight 71 which serves to normally tension the brake. 72 is a chain suitably connected at its upper end to the framework of the dump and connected at its lower end to the end of the lever 69. This chain is of such a length that when the track section 4 is dropped to its lower position it will move the lever 69 with respect to the track section frame sufficiently to release the tension of the brake band.

73 represents a car in dumping position. 74 is a chute for receiving material discharged fromthe car. As the car moves into dumping position the end may be opened manually by the operator, or, if desired, bars 75 may be provided for engaging with suitable lugs 7 6 n the car to raise the door.

In operation let it be assumed that the shiftable track section is in'its upper position and that the horns 9, 9 and 10, together with the associated parts have been moved by the weight 32 so that the horns 9, 9 are in position to engage the wheels of a car and the horns 10, 10 are out of car engaging position. Also let it be assumed that there is a car in dumping position, as

shown in Fig. 1. As a car approaches the dump it is engaged and stopped at the horns 9, 9. When it is desired to advance the car to dump it, the operator by moving the lever can move the horns 9, 9 to release the car and at the same time move the horns 10, 10 into position to engage the car wheels as the car moves forward under the action I of gravity.

sition shown in dotted lines in Fig. 1 and in full lines in Fig. 2. On account of the eccentric mounting of the sheaves 42, 42 the weights 46, 46 apply a gradually increasing resistance to the downward movement of the track section with the result that it is brought to rest in alinement with the track 2 with a minimum of shock. The weights 46, 46 are of such size that they will be lifted by the combined weight of the track section and of a car, but will lift-the track section back to normal position after the car has passed from it.

After the track section 4 has been released, as before described, and as it approaches alinement with the track 2, the chain 72 is tensioned and the brake band 68 is released from the wheel 67 and the horns 61 are permitted to be moved by the previously compressed spring 66 to give the wheels of the dumped car an impulse which serves to start the car over the hump of the pivoted track section and downward onto the return track 2.

As soon as the car has passed from the section 4 the section is at once raised to normal position by the weight 46, 46. On account of the eccentric mounting of the sheaves 42, 42 the weights supply a gradually decreasing lifting force which finally becomes practically equal to the weight of the section. As a result of this gradual decreasing lifting force the track section is elevated with a minimum of shock.

While the track section 4 is depressed the horns 9, 9 and 10, 10 are held in the position as last described by, the engagement of the rollers 59, 59 with the flanges 39, 39 of the gallows frame. The operator may, therefore, if desiredrelease his hold on the lever 20. As soon as the track section returns to its normal upper position the weight 32 is permitted to act to move the-horns 10, 10 to release the 'car and to move the horns 9, 9 back into car engaging position. It will be observed that the distance between the horns 9, 9 and the horns 10, 10 is somewhat less than the length of a car. As the result of this if a second car moves onto the dump while the first car is engaged by the horns 10, 10 it will be held. a slight distance back from the horns 9, 9. This gives time for the horns 9, 9 to be returned into operative position before the second carreaches them.

The car released from the horns 10,10

at once advances by gravity and engages the trip levers 54, 54 to depress them and to thereby throw the latches 47, 47 into position to engage and support the track sec tion 4. If, for any reason, the latches do not move, the shapes of the trip levers are such that the car will be stopped.

The advancing car moves first on to the upper slightly inclined part of the track section 4 and finally onto the part which is inclined sharply downward. As the car approaches the downward inclined part its wheels are engaged by the horns 61 and the downward movement of the car is first resisted, and then stopped by the combined actionof the spring 66 and the brake band 68 engaging the wheel 67. The car remains in this position until dumped, its end having been opened either manually or automatically, as before described.

After dumping, the operator by moving the lever 20 can release another car from the horns 9, 9, which will act to release the pivoted track section to-permit it to drop and the entire operation of the dump will then be repeated in the manner which has been before described.

It will be observed that the construction of the gallowsframe is such that when the frame and the pivoted track section are depressed the upper cross member 35 of the frame is in position to engage the bufier of a car. In this way an additional safety device is provided for preventing a car, which may in some manner have gotten past the horns, from running OK the open end of the track 1.

I am aware that it has been heretofore proposed to construct a car dump having superposed tracks and a shiftable track section arranged to aline successively with the two tracks. I do not, therefore, claim this combination as a part of my present invention. Neither do I claim broadly as part of my present invention pivotally mounted spring andbrake controlled horns for bringing a car to rest in dumping position on an inclined track. This feature is disclosed and claimed in a copending application by another inventor.

What I claim is A 1. In a car dumping apparatus the combination of two tracks having their ends adjacent, and a shiftable track section movable into successive alinement at one end with the two tracks to receive a car from one of them and discharge it onto the other of them, the said section being rigid throughout and having a part which is inclined sharply downward with respect to the main part and which is adapted to receive a car and to support it in inclined dumping position.

2. In a car dumping apparatus the com bination of two tracks having their ends adjacent, a track section shiftable into successive alinement at one end with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said section being rigid throughout and having a part which is sharply inclined downward when the section is in alinement with the first said track and means for engaging a car on the shiftable track section to retard it and bring it to rest in inclined dumping position on the inclined part.

3. In a car dumping apparatus the com bination of two tracks arranged with their ends adjacent, a shiftable track section adapted to be movedinto successive alinement with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said section being rigid throughout and having a part which is sharply inclined downward when the section is in alinement with the first saidtrack, means for engaging a car on the shiftable track section to retard its movement and to bring it to rest in dumping position on the inclined part of the shiftable track section,

and means for positively engaging the car after dumping to cause itsreturn movement along the shiftable track section out of dumping position.

4. In a car dumping apparatus the combination of two tracks arranged with their ends adjacent, a track section shiftable into successive alinement with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said section having a part which is sharply inclined downward wvhen the section is in alinement with one of the tracks and which is adapted to receive and to support a car in inclined dumping position, a pivotally mounted element arranged to engage a car on the shiftable track section, and a friction brake connected to the pivoted element to resist its movement together with that of the car as the car moves into dumping position.

5. In a car dumping apparatus the combination of two tracks arranged with their ends adjacent, a track section shiftable into successive alinement with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said section having a part which is sharply inclined downward when the section is in alinement with one of the tracks and which is adapted to receive and to support a car in inclined dumping position, a transverse shaft rotatably mounted in bearings secured to the shiftable track section, horns secured to the shaft to rotate therewith, the horns being positioned at'points adjacent the inclined part and adapted to engage the wheels of a car, and a brake connected to the shaft and adapted to resist its rotation together with that of the horns when the horns are engaged by a car moving into dumping position.

6. In a car dumping apparatus the combination of two tracks arranged with their ends adjacent, a track section shiftable into successive alinement with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said section having a part which is sharply inclined downward when the section is in alinement with one of the tracks, a transverse rotatable shaft mounted on the shiftable track section, two horns connected to the shaft in position to extend into the paths of the wheels of a car on the shiftable track section, a brake connected to the shaft for resisting the rotation thereof together with the rotation of the horns in one direction, and a spring also connected with the shaft and also serving to resist the rotation thereof together with that of the horns in one direction whereby a car when engaged 'by'the horns is brought gradually to rest in dumping position on the inclined part of the section.

7. In a car dumping apparatus the combination of two tracks arranged with their ends adjacent, a track section shiftable into successive alinement with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said shiftable section having a part which is sharply inclined downward when the section is in alinement with the first said track and which is adapted to receive a car and to support it in inclined dumping position, a

' reciprocable element mounted in position to engage a car on the shiftable section at points adjacent the inclined part thereof, a brake connected with the element to resist the movement thereof when it is engaged by a car moving into dumping position, and means automatically operable when the shiftable section is brought into alinement with the second track for releasing the said brake to permit the return movement of the 1 said reciprocable element.

8. In a car dumping apparatus the combination of two tracks arrangedwith their ends adjacent, a track section shlftable successively into working relation with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said section having a part which is sharply inclined downward when the section is in working relation with the first said track and which is adapted to receive and support a car in inclined dumping position, a transverse shaft rotatably mounted on the shiftable track section, two horns secured to the shaft and arranged to extend into the paths of the wheels of a car on the shiftable section at points adjacent the inclined part thereof, a brake connected with the shaft and adapted to resist its rotatlon together with that of the horns when the horns are engaged by a car movinginto dumping position, and means automatlcally operatlve when the shiftable section is moved into working relation with the second track for releasing the brake to permit the free movement' of the shaft and the horns.

9.- In a car dumping apparatus the combination of two tracks arranged with ends adjacent, a shiftable track section adapted toaline successively with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said section having a part which is sharply inclined downward when the section is in alinement with the first said track and which is adapted to receive a car and tosupport it in inclined dumping position, a recipro-- cable element mounted to engage a car on the shiftable section at points adjacent the inclined part thereof, a brake for resisting the movement of the element when it is engaged by a car moving into dumping position, automatically acting means for releasing the brake when the section is moved into alinement with the second track, and a spring-controlled means for imparting an impulse to the car to move it out of dum ing position and backward along the shi table section.

10. In a car dumping apparatus the combination of two tracks arranged with their ends adjacent, a track section shiftable into successive working relation with the two tracks to receive a carvfrom one of them and to discharge it onto the other of them, the said section having a part which is sharply in clined downward when the section is in working relation with the first said track and *whichis adapted to receive a car and to support it in inclined dumping position, a transverse shaft rotatably mounted on the shiftable section, two horns on the shaft arranged to extend into the paths of the wheels of a car on the section at points adjacent the inclined part thereof, a brake connected to the shaft for resisting the movement thereof, together with the movement of the horns when the horns are engaged by a car moving into dumping position, automatically acting means for releasing the brake when the shiftable'section is moved into working relation with the second track, and a springcontrolled means for imparting an impulse to the car to move it out of dumping position backward along the shiftable section.

11. In a car dumping apparatus the combination of two tracks arranged with their ends adjacent, a section shiftable into successive working relation with the two tracks to receive a car from one of them and to diselement, the said brake and spring acting simultaneously when the element is engage by a car moving into dumping position, and automatically acting means for releasing the brake when the shiftable section is moved into working relation with the'second said track whereby the spring is left free to move the element in the return direction to impart to the car an impulse causing it to move out of'dumping position backward along the shiftable section.

12. In a car dumping apparatus the combination of two tracks arranged with their ends adjacent, a shiftable section adapted to be moved successively into register with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said section having a part which is sharply inclined downward when the section is in register with the first said track and which is adapted to receive a car and to support it in inclined dumping position, a transverse shaft rotatably mounted-on the shiftable, section, two horns secured to the shaft and positioned to extend into the paths of the wheels of a car on the section at points adjacent the inclined part. thereof, a brake connected with the shaft to resist its movement in one direction gether with the movement of the horns, a spring also connected with the shaft and adapted to resist its movement in the same direction together with the movement of the horns, the said brake and spring acting simultaneously when the horns are engaged by a car moving into dumping position, and means automatically operative when the section is moved into register with the second said track for releasing the brake whereby the springris left free to return the horns to their initial positions and to cause the movement of the car out of dumping position backward along the shiftable section.

13. In a car dumping apparatus the combination of two superposed tracks having their ends adjacent, a track section shiftable successively into register with the two tracks to receive a car from the upper of them and to discharge it onto the lower of them, the said section having a part which is sharply inclined downward when the section is in alinement with the upper track and which is adapted to receive a car and to support it in inclined dumping position, a reciprocable element mounted to engage a car .on the shiftable section at points adjacent the inclined part thereof, a brake connected with the element to'resist its movementwhen it is engaged by a car moving into dumping position, automatic means for releasing the brake when the shiftable section is moved into register with the lower track, and a spring controlled means for imparting an impulse to the car which causes it to move out of dumping position backward along the shiftable section.

14. In a car dumping apparatus t com- :naeaear bination of two superposed tracks, a shiftable track section arranged to aline with the upper of the tracks to receive a car therefrom and with the lower of the tracks to discharge a car thereonto, the said shiftable section having a part which is sharply inclined downward when the section is in alinement with the upper track and which is adapted to receive a car and to support it in inclined dumping position, a transverse shaft rotatably mounted on the shiftable section, two horns secured to the shaft and positioned to extend into the paths of the wheels 'of a car on the shiftable section at points adjacent the inclined part thereof, a brake connected to the shaft for resisting its ward along the shiftable section and onto the lower track.

' 15. re a car dumping apparatus the combination of two superposed tracks, a shiftable section adapted to be alined with the upper track to receive a car therefrom and with the lower track to discharge a car thereonto, the said shiftable section having a part-which is inclined sharply downward when the section is alined with the upper track, and which is adapted to receive a car and support it in inclined dumping position, a transverse shaft rotatably mounted on the shiftable section, two horns secured to the shaft and positioned to extend into the paths of the wheels of a car on the section at points adjacent the inclined part thereof, a brake wheel secured to the shaft, a brake band engaging the wheel, a weighted lever 'pivotally connected with the shiftable track section for tensioning the brake band, means dependent on the movement of the shiftable section into alinement with the lower track for moving the lever with respect to the section to release the brake bandfrom the wheel, and a spring controlled means for imparting to the car an impulse which causes it to move out of dumping position backward along the shiftable section and onto the lower track. 1

\ 16. In a car dumping apparatus the combination of two superposed tracks, a shiftable section adapted to register with the tracks to receive a car from the upper of them and to discharge it onto the lower of them, the said section having a part which is sharply inclined downward when the section is in register with the upper track and which is adapted to receive a car and to support it in inclined dumping position, a reciprocable element mounted to engage a car on Nil memes? the shiftable section at points adjacent the inclined part thereof, a brake for resisting the movement of the element in one direction, a spring for resisting the movement of the element in the same direction, the said brake and spring acting simultaneously when the element is engaged by a car moving into dumping position, and automatic means for releasing the brake when the shiftable track section is moved into register with the lower track, whereby the sprlng is permitted to cause the return movement of the element and of the car.

17 In a car dumping apparatus the combination of two superposed tracks, a track section shiftable successively into working relation with the two tracks to receive a car' from the upper of them'a-nd to discharge it onto the lower of them, the said section having a part which is inclined sharply downward when the section is in working relation with the upper track, atransverse shaft rotatably mounted on the shiftable section, two horns secured to the shaft and mounted to extend into the paths of the wheels of a car on the shiftable section at points adjacent the inclined part thereof, a brake connected with the shaft for resisting its movement together with that of the horns, a spring connected with the shaft for resisting its movement together with that of the horns in the same direction, the said brake and spring acting simultaneously when the horns are engaged by a car moving into dumping position, and automatic means for releasing the brake when the section is moved into working relation with the lower track whereby the spring is left free to cause the return movement of the shaft and the horns and of the car.

18. In a car dumping apparatus the combination of two superposed tracks, a track section shiftable into successive working relations with the two tracks to receive a car from the upper of them and to discharge it onto the lower of them, the said section having a part which is sharply inclined downward when thesection is in working relation with the upper track and which is adapted to receive a car and support it in inclined dumping position, a transverse shaft rotatably mounted on the shiftable track section, two horns secured to the shaft and arranged to extend into the paths of the wheels of a car on the section at polnts adjacent the inclined part thereof,.a brake wheel on the shaft, a brake band for engagping the wheel, a weighted lever pivotal mounted on the track section and connected with the brake band to tension it, a spring connected with the shaft to resist its movement, the said brake and spring acting simultaneously when the horns are engaged by a car moving into dumping position. and

5 means dependent on the movement of the 19. In a car dumping apparatus the combination of two tracks arranged with their ends adjacent, a shiftable track section adapted'to be moved successively into alinement with the two tracks to receive a car from one of them and to discharge it onto the other of them, the said section having a part which is sharply inclined downward when the section is in alinement with the first said track and which is adapted to re-' ceive a car and support it in inclined dumping position, two pivotally mounted horns arranged to extend into the paths of the wheels of a car on the shiftable track section at points adjacent the inclined part thereof, and a spring connected with the horns to resist their movement when they are engaged by a car moving into dumping position and to cause their return movement together with that of the car when the shift-- able section has been moved into alinement with the second said track.

20. In a car dumping apparatus the combination of two superposed tracks, a pivotally mounted track section having one end normally in alinement with the upper track to receive a car therefrom but movable about a pivotal axis into alinement with the lower track to discharge a car thereonto, means for dumping a car on the pivoted section, means for releasing the section to permit it to move by gravity from alinement with the upper track into alinement with the lower track, an eccentrically mounted rotatable sheave above the pivoted section, a rope extending over the sheave and connected at one end with the movable end of the section, and a counterweight connected to the other end of the rope, the eccentrically mounted sheave being so positioned and connected that when the section is in the'upper position the part of the rope con-" nected with the section will be held at the maximum.moment arm and the part connected with the "counterweight atthe minimum moment arm.

21. In a car dumping apparatus the combination of'two superposed tracks, a track section pivotally mounted and so arranged that one of its ends is normally in aline-- ment with the upper track to receive a car therefrom but movable into alinement with the lower track to discharge a car thereonto, means on the pivoted section for dumping a car,- a vertically reciprocable frame mounted adjacent the free end of the pivoted section, connections between the frame and the said end of the section, and means connected with the frame for controllingits lower track to discharge o i a gfttrigat i M3 B3 @row movement together with that of the pivoted section.

22. In a car dumping apparatus the combination of two superposed tracks, a pivotally mounted. track section arranged with one end normally in alinement with the upper track to receive a car therefrom but movable into alinement with the lower track to discharge a car thereonto, means for dumping a car while on the pivoted section, and a vertically reciprocable frame adjacent the free end of the pivoted section, the said frame comprising vertical side members at the sides of the pivoted section, a horizontal bottominember with which the pivoted section is connected and a horizontal top member arranged to lie in the path of a car on the upper track when the pivoted section and the frame are in their lower positions.

23. In a car dumping apparatus the combination of two superposed tracks, a track section normally in register with the upper track to receive a car therefrom but shiftable into register with the lower track to discharge a car thereunto, means for dumping a car While on the shiftable section, means adapted to be actuated by the forward movement of a car along the upper track to release the shiftable section and permit it to move into register with the 'lower track for discharging the dumped car thereonto, and means for arresting the for ward movement of the car on the upper track after it has passed the releasing means.

24;. In a car dumping apparatus the combination of two superposed tracks, a track section normally in alinement with the upper track to receive a car therefrom hut shiftable in alinement with the lower track to discharge a car thereonto, means for dumping a car on the shiftable section, a device for releasing the shiftable section to permit it to move into alinement with the the dumped car thereonto, the said releasing device r to be automatically operated by the movement of a car along the upper track, a stop for the c i i passed In a car h han of t o suoerpose track section no. upper tract; movable into a. to dischaige a car dumping a on M d 'ce for releasing permit it lower track thereonto, the sail 1 arole I role nee-spar movement of a car along the upper track, a manually controlled stop for preventing the movement of a car into engagement with the releasing device, and a manually controlled stop for arresting the movement of a car after engagement with the releasing de- VlCe.

26. In a car dumping apparatus the combination of two superposed tracks, a track section normally alining with the upper track to receive a car therefrom but shiftable into alinement with the lower track to discharge a car thereonto, means for dumping a car while on the shiftable section, a device for releasing the shiftable section to permit it to move into alinement with the lower track to discharge the dumped car thereonto, the said releasing device being arranged to be operated by the forward movement of a car on the upper track, a stop adapted to be moved into the path of a car to prevent its engagement with the releasing device, a second stop adapted. to be moved into the path of a car to arrest its motion after passing the releasing device, and a manually controlled device for moving either stop into operative position and the other stop simultaneously out of position.

27. In a car dumping apparatus the combination of two superposed tracks, a track section normally alining with the upper track to receive a car therefrom but shiftahle into alinement with the lower track to discharge a car thereonto, means for dumping a car while on the shiftable section, a device for releasing the shiftahle section to permit it to move into alinement with the lower track to discharge the dumped car thereonto, the said releasing device being arranged to be operated by the forward movement of a car along the upper track, a stop adapted to he moved into the path of a car on the upper track to prevent its engage ment with the releasing device, a second stop arranged to he moved into the path'of car on the upper trac to prevent continued movement beyon the rel asing device, and meansfor simultaneously throwthe second stop out of operation and the first stop into operation v erehyt one car is permitted to me more the upper onto the another rem movn w verward to the releasing de vice,

In a c '1 l atus the comhi "103 of o sup ed tracks, a traclr section nori alini g with the upper therein-om but shiftable section to permit it to move into alinement with the lower track to discharge the dumped car'thereonto, the said releasing device being arranged to be operated by the forward movement of. a car along the upper track, a stop adapted to be moved into the path of a car on the upper track to prevent its engagement with the releasing device, a second stop arranged to be moved into the path of a car on the upper track to prevent its continued movement beyond the releasing device, means for simultaneously throwing the second stop out of operation and the first stop into operation whereby one car is permitted to move forward from the upper track onto the shiftable section and another car is prevented from moving forward along the upper track to engage the releasin device, and means for automatically locking the second stop in operative position when the shiftable track section is in its lower position.

29. In a car dumping apparatus the combination of two superposed tracks, a track section normally: alining with the upper track to receive a car therefrom but shiftable into alinement with the lower track to discharge a car thereonto, means for dump- 'ing a car while on the shiftable section, a

device for releasing the shiftable section to permit it to move into alinement with the lower track 'to discharge the dumped car thereonto, the said releasing device being arranged to be operated by the forward movement of a car along the upper track, a stop adapted to be moved into the path of a car on the upper track to prevent its engagement with the i'eleasing'devlce, a second stop arranged to be moved into the path of a car on the upper track to prevent ts continued movement beyond the releasing de-- vice, and means controlled by the shiftable track section for insuring that the second stop is in operative position when the track section is in its lower position.

30. In a car dumping apparatus the combination of two superposed tracks, a track section normally alining with the upper track to receive a car therefrom but shiftable into alinement with the lower track to discharge a car thereonto, means for dumping a car on the shiftable section, a devlce for releasing the shiftable sectlon to permit it to move into alinement with the lower track to discharge the dumped car thereonto, the said releasing device being arranged to be operated by the forward movement of a car along the upper track, a stop movable into the path of a car on the upper track for preventing its movementmto position to operate the releasing device, a second stop movable into the path of a car on the upper track for preventlng the continued movement of a car beyond the releasing device, the distance between the two stops being less than the length of a car,

and means for simultaneously throwing the second stop out of operative position and the first stop into operative position.

31. In a car dumping apparatus the "combination of two superposed tracks, a track section normally in working relation with the upper track to receive a car therefrom but shiftable into working relation with the lower track to discharge a car thereonto, means for dumping a car on the track section, means for releasing the section to permitit to move into alinement with the lower section to discharge the dumped car thereonto, two stops arranged in the path of cars on the upper track and separated by a distance lessthan the length of a car, and means for simultaneously throwing one of the ,stops into operation and the other out of operation, or vice versa.

32. In a car dumping apparatus the combination of two superposed tracks, a track section normally in working "relation with the upper track to receive a car therefrom but movable into working relation with the lower track to discharge a car thereonto, means for dumping a car on the movable track section, means for releasing the section to permit it to move into working relation with the lower track to discharge the dumped car thereonto, a horn movable into the path of a car on the upper track, manually controllable means normally operative for moving the stop into or out of operative position, and means controlled by the movable track section for insuring that the horn is in operative position when the track section is in its lower position.

33. In a car dumping apparatus the combination of two superposed tracks, a track section normally in alinement with the up{ per track to receive a car therefrom but shiftable into alinement with the lower track to discharge a car thereonto, means for dumping a car on the shiftable section, means for releasing the shiftable section. to permit it to move into alinement with the lower track to discharge the dumped car, two hornseach movable into or out of the path of a car on the upper track, connections between the horns whereby one of them is moved out of operative position as the other is moved into operative position, and means for automatically locking the horn which is nearer the shiftable section in operative position when the shiftable track section is in its lower position.

34. In a car dumping apparatus the combination of two superposed tracks, a track section normally inalinement with the upper track to receive a car therefrom but shiftable into alinement with the lower track to discharge a car thereonto, means for dumping a car on the shiftable section, means for releasing the shiftable section to permit it to move into alinement with the lower track to discharger the dumped car, two horns each movable into or out of the path of a car on the upper track, connections between the horns whereby one of them is moved out of operative position as the other is moved into operative position, manually controllable means for moving the horns, and means for automatically locking the horn which is nearer the shiftable track section in operative position when the track section'is in its lower position.

35. In a car dumping apparatus the combination of two superposed tracks, a track section normally in alinement with the up per track to receive a car therefrom but shiftable into alinement with the lower track to discharge a car thereonto, means for dumping a car while on the shiftable section, means for releasing the shiftable section to permit it to move into alinement with the lower track to discharge the dumped car, a horn for holding a car against movement along the upper track, a manually controllable means for moving the horn into operative position, and a normally operative means for automatically moving the horns out of operative position.

36. In a car dumping apparatus the combination of two superposed tracks, a track section normally in alinement with the upper track to receive a car therefrom but shiftable into alinement with the ltwer track to discharge a car thereonto, means for dumping a car while on the shiftable section, means for releasing the shiftable section to permit it to move into alinement with the lower track to discharge the dumped car, a horn for holding avcar against movement along the upper track, manually controllable means for moving the horn into operative position, normally operative means for automatically moving the horn out of operative position, and means controlled by the shift-.

able track section for holding the said automatically operative means out of operation while the said shiftable track section is out of alinement with the upper track.

37 In a car dumping apparatus the combination of two superposed tracks, a track section normally in alinement with the upper track to receive a car therefrom but shiftable into alinement with the lower track to tsetse? ing the horn which is nearer the shifta'ble track section into operative position and the other horn out of operative position, and a normally operative device for automatically moving the first horn out of operative position and the second horn into operative po- I sition.

38. In a car dumping apparatus the combination of two superposed tracks, a track section normally in alinement with the upper track to receive a car therefrom but shiftable into alinement with the lower track to discharge a car thereonto, means for releasing the shiftable section to permit it to move into alinement with the lower track to discharge the dumped car, two horns positioned at difierent points along the upper track and each adapted to engage a car to arrest its movement, connections between the horns whereby one of them is moved out of operative position when the other is moved into operative position, manually controllable means for moving the horn which is nearer the shiftable track section into operative position and the other horn out of operative position, a normally operative device for automatically moving the first horn out of operative position and the second horn into operative position, and means for holding said automatic device inoperative while the shiftable track section is out of alinement with the upper track.

39. In a car dumping apparatus the combination of two superposed tracks, a track section normally in alinement with the upper track to receive a car therefrom but shiftable into alinement with the lower track to discharge a car thereonto, means for dumping a car while on the shiftable track section, a latch normally operative for holding the shiftable section in normal position, a device for releasing the latch to permit the shiftable track section to move out of normal position into alinement with the lower track to discharge the dumped car thereonto, the said releasin device being arranged to be operated %y a car advancing along the upper track, means for returning the shiftable track section from its lower position to its upper normal position, and a device controlled by a car advancing along the upper track for returning the latch to its normal operative position.

40. In a car dumping apparatus the combination of two superposed tracks, a track section normally in alinement with the upper track to receive a car therefrom but shiftable into alinement with the lower track to discharge a car thereonto, means for dumping a car while on the shiftable track section, a latch normally operative for holding the shiftable section in normal position, a device for releasing the latch to permit the shiftable track section to move out of normal position into alinement with the lower track to discharge the dumped car thereonto, the said releasing device being arranged to be operated by a car advancing along the upper track,'means for returning the shiftable track section from its lower position to its upper normal position, a device controlled by a car advancing along the upper track for returning the latch to normally positioned for holding the said track section in alinement with the upper track, means for dumping a car while on the shiftable section, and means within the control of an operator for releasing the said latch to permit the track section to move into alinement with the lower track to discharge the dumped car and for simultaneously releasing another car on the upper track from the said holding device to per- ,mit it'to advance toward the shiftable section.

In testimony whereof I aflix my signature, in presence of twowitnesses.

GEORGE HENRY MUELLER.

Witnesses:

Jos. WEBSTER, DUDLEY T. FISHER. 

